Welcome to the web site of Ceres Electronics Corporation, the pioneer in the manufacture of Diamond and Moissanite testers for the jewelry industry.
		Here you will find information on our complete line of gem testers, such as the Ceres CZeckpoint® (the # 1 diamond tester in the world), Diamond Probe II®, Reliance®, Reliance AC®, and CZeckpoint XL® diamond testers, the Secure II® Moissanite detector, and the Dual XL, which will simultaneously detect both Diamond and Moissanite®. You will also find lots of helpful hints on making your tester function optimally. And, in the event that your Ceres tester requires service, you will be able to expedite the repair using our online system and will be able to track your unit through the repair process. This site is for you, and we appreciate your comments on how we can improve it.